Marmoset Toolbag is a real-time rendering software used for creating high-quality 3D renders and presentations. It offers a streamlined environment for artists to preview and render 3D models with realistic lighting, shadows, and reflections. Toolbag's real-time rendering engine makes it ideal for creating detailed, interactive 3D scenes, and it supports advanced features like material creation, baking, and texture mapping. It is widely used in game development and product design to produce realistic visualizations quickly. Its intuitive interface and powerful rendering tools make it a popular choice for both professionals and hobbyists.